Analysis of Heat Enhancement of Plate Heat Exchanger Efficiency by Internal Thread

The heat exchangers are generally used to transfer heat from one medium to another medium.An experiment was conducted in Bhopal Sahakari Dugdh Sangh (BSDS) on Plate Heat Exchanger. A Plate Heat Exchangers are used to pasteurize milk in BSDS, in which the warm water is used to transfer heat towards milk by which milk is pasteurized. The temperature of pasteurization milk is set on 78°C in BSDS plant for milk properties, when the temperature of pasteurized milk become below 78°C the milk come in raw milk tank to again pasteurize. By which we got the working plate heat exchanger efficiency of BSDS is 75%. We enhance the working plate heat exchanger efficiency of BSDS by placing different internal thread (Pitch 1cm and 0.5cm) in inlet warm water pipe. We got the working efficiency of Plate Heat Exchanger in this internal threads are 81.01% and 77.11%. The experiments proposed for counter flow models of the fluids. After modification by internal thread in Plate Heat exchanger set up we got inner thread of 0.5cm pitch give more turbulence than inner thread of 1cm pitch. We compared these modified working efficiency to without modified working efficiency of plate heat exchanger which is used in BSDS. We got that the working efficiency of BSDS plant is increased by placing inner thread of 0.5cm pitch.